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Analog Tutorial Lesson 1: A Simple Voltage Divider Circuit

85 bytes added, 17:38, 6 September 2015
*Nodes
*Live Simulation
*DC Bias Test
*DC Sweep Test
*Data Graphs
*Data Tables
|All versions|{{download|http://www.emagtech.com/content/project-file-download-repository|Analog Tutorial Lesson 1|[[EM.Cube]] 14.8}} }}
There are many different ways in [[RF.Spice A/D]] to place a part in your circuit. All these methods do the same job. So it is simply a matter of personal preference which method to choose. Generic parts can be accessed from the Parts Menu. You can also click on the Add Part Toolbox on the left side panel and browse the parts database alphabetically or using other criteria or filters such as a part's function or manufacturer.
{{Note | Most generic parts in [[RF.Spice A/D]] have intuitive Netlist-compatible [[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|[[Keyboard Shortcuts|keyboard shortcuts]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]. You can easily place them in your circuit by simply typing their shortcut on your keyboard. All [[Keyboard Shortcuts]] are case-insensitive.}}
Once you select your part, the mouse cursor changes to a ghost of your selected part. Move the mouse to a location in the main window where you want to place your part and left-click to drop it. After placing the part, it remains selected. This allows you to duplicate or rotate the device immediately after placing it.
From the "Source" drop-down list, select "v1", with the "'''Property'''" set to "'''DC'''". Set the Start Value to 0, End Value to 5 (Volts) and Step Value to 100m (millivolts). Make sure again that the '''Single Test''' tab is selected. Also, make sure the check box labeled "'''Graph'''" is checked in the "Output Results Options" section of the dialog. Before running the test, you have to instruct B2.Spice what you want to plot at the end of the test. Click the button labeled "'''Preset Graph Plots...'''". A new dialog opens up, which looks like the figure shown above. The dialog contains a tabled titles "'''Signal Name'''" that lists all the signals available for graphing. Select '''v(2)''' from the table by highlighting it and click the button labeled "'''Add->'''" to move the signal to the other table on the right titled "'''Graph Name'''". You can add different signals and can further change the list items using the "'''<-Remove'''" button. Click the OK button of the dialog to accepts changes and close it.
{{Note|The voltages are defined by referring to the nodes of the circuit. v(2) means the voltage at Node 2 reference to the ground. You can see all the node numbers or labels by clicking the "Show Node Names" [[File:b2Nodes_Tool.png]] button of the [[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|[[Schematic toolbar|Schematic Toolbar]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]] or using the keyboard shortcut "'''Ctrl+Alt+N'''".}}
[[File:b2TUT1_15.png|thumb]]If you display/activate the nodes in your circuit, your schematic must look like the following figure:
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